Given the context and situation, what is the whole system? Is that wholeness served more by trying to include, or by drawing this boundary?
a circle helps us see and thereby recognize the whole system that is in the room. --Sue
Builds commitment for change, action. --Tree
You can get feedback more quickly (and directly) if everyone is in the room. --Sue
The more of the system you have in the room, the more realistic and appropriate will be the possibilities that you generate for that system. -- Tom
If the whole system is in the room as peers, with all parts of the whole system being well heard, the assumptions held by each part of the system get shaken up and people have to go deeper in an effort to find new understandings that work for them, individually and collectively. Those new understandings tend to represent a deeper insight into the whole system everyone there is part of, and therefore a form of wisdom. -- Tom
It might be easier to see and/or intentionally change a groups culture when the whole system is present in the room. -- Sue
if the whole system is in the room, there is more likely to be available necessary data, and/or the skills for mapping what is known or could be. --Sue
Welcome the Whole System in the Room, to the extent that it is present. Validate the role and courage of the diverse parts of the system who have chosen to be there. -- Tom
When the whole system is in the room power differences are visible and can be more openly worked with. --Sue
The more parts of the relevant system that you can include among the participants, the more prepared the group will be to generate solutions and possibilities that serve the group's purpose. -- Tom
The full power of the whole system present in the room will not be visible/tapped unless all have a chance to share/speak. --Sue
It can cut through a whole lot of time/process/communication challenges to just have everyone present dealing with it all at once. --Sue
In a way, having the whole system in the room together is a form of transparency. It also makes transparency especially valuable. --Tree
The more of the Whole System we bring together in the room, the more Viewpoints indigenous to that system will be present to learn about each other, increasing the health, coherence, and functionality of the system as it evolves. -- Tom

